Theory

CH22 - MAGNETIC FIELDS

(a) Define the Τesla....................................................................................................................................

2009 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) On Fig. 6.1, sketch the pattern of the magnetic flux in the horizontal plane ABCD due to the current-carrying wire. Draw at least four flux lines....

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

Outline briefly the main principles of the use of magnetic resonance to obtain diagnostic information about internal body structures.

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

(a) On Fig. 5.2, (i) draw four field lines to represent the pattern of the magnetic field around wire X due solely to the current in wire X, [2] (ii...

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

(a) A constant current is maintained in a long straight vertical wire. A Hall probe is positioned a distance $r$ from the centre of the wire, as shown...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

Negatively-charged particles are moving through a vacuum in a parallel beam. The particles have speed v. The particles enter a region of uniform magne...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) A uniform magnetic field has constant flux density $B$. A straight wire of fixed length carries a current $I$ at an angle $\theta$ to the magnetic...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) A uniform magnetic field has constant flux density $B$. A straight wire of fixed length carries a current $I$ at an angle $\theta$ to the magnetic...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

Positive ions are travelling through a vacuum in a narrow beam. The ions enter a region of uniform magnetic field of flux density $B$ and are deflecte...

2010 Winter

Theory

CH22 - MAGNETIC FIELDS

Positive ions are travelling through a vacuum in a narrow beam. The ions enter a region of uniform magnetic field of flux density $B$ and are deflecte...

2010 Winter

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

When a force $F$ moves its point of application through a displacement $s$ in the direction of the force, the work $W$ done by the force is given by $...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a possible unit for the product $VI$, where $V$ is the potential difference across a resistor and $I$ is the current through the same resistor...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the average kinetic energy of an athlete during a 100 m race that takes 10 s?

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A light-meter measures the intensity $I$ of the light falling on it. Theory suggests that $I$ varies inversely as the square of the distance $d$. W...

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

In an experiment, a radio-controlled car takes $2.50 \pm 0.05$ s to travel $40.0 \pm 0.1$ m. What is the car’s average speed and the uncertaint...

2012 Summer

MCQ

CH3 - KINEMATICS

In an experiment to determine the acceleration of free fall using a falling body, what would lead to a value that is too large?

2012 Summer

MCQ

CH3 - KINEMATICS

Which feature of a graph allows acceleration to be determined?

2012 Summer

MCQ

CH3 - KINEMATICS

The diagram shows a laboratory experiment in which a feather falls from rest in a long evacuated vertical tube of length $L$. The feather takes tim...

2012 Summer

MCQ

CH3 - KINEMATICS

In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The stone reaches poi...

2012 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Each option gives a correct word equation involving force. Which option gives the definition of force?

2012 Summer